## Chemistry: The Central Science (13th Edition)

A chiral carbon has four different groups or atoms attached to it. This molecule has two chiral carbon atoms present. The second carbon from the right has $-CH_{3}$, $-H$, $-C_{2}$$H_{5}, NH_{2}-C-COOH. Also third carbon from the right has -H, -NH_{2}, COOH and -CH$$(CH_{3})$$(C_{2}H_{5}$).